xml application advice
flyeng4 at gmail.com
Wed Jun 10 18:39:33 CEST 2009
Scott David Daniels wrote:
> William Purcell wrote:
>> I am writing a application to calculate pressure drop for a piping
>> network. Namely a building sprinkler system. This will be a
>> command line program at first with the system described in xml....
> If you are going to be doing a lot of tree walking, try etree.
> Simple example:
> import xml.etree.ElementTree as ET # or wherever you get ElementTree
> def find_remote_and_path(node, path):
> for child in node:
> for result in walks(child, path + [node]): yield result
> if node.tag == 'node' and node.get('hydraulically_most_remote'
> ) == 'True':
> yield node, path
> tree = ET.parse('ex.xml')
> for node, path in find_remote_and_path(tree.getroot(), ):
> for t in path:
> print ' ', t.tag, t.get('id', '-')
> print node.tag, ', '.join(sorted('%s=%r' % pair
> for pair in node.items()))
> --Scott David Daniels
> Scott.Daniels at Acm.Org
Scott, Thanks for the reply.
I am having a little trouble finding where to import `walks` from.
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